[Event "URS-ch25 Semifinal"]
[Site "Leningrad"]
[Date "1957.12.10"]
[Round "19"]
[White "Spassky, Boris Vasilievich"]
[Black "Aronin, Lev Solomonovich"]
[Result "1-0"]

1. d4 d5 2. c4 e6 3. Nf3 c5 4. cxd5 exd5 5. g3 Nc6 6. Bg2 Nf6 7. O-O Be7 8. dxc5 Bxc5 9.
Nbd2 O-O 10. Nb3 Bb6 11. Nbd4 Re8 12. b3 Bg4 13. Bb2 Ne4 14. Qd3 Qd7 15. a3 h5 16. e3 Bh3
17. Rfd1 Bxg2 18. Kxg2 Bxd4 19. Nxd4 Rac8 20. Nf3 Red8 21. Rac1 Qf5 22. Qe2 g5 23. h3 a6
24. Nh2 Rd6 25. g4 hxg4 26. Nxg4 Re6 27. f3 Nd6 28. Rc5 Ne7 29. Rxc8+ Ndxc8 30. Qd2 Rc6
31. Qd4 Rc2+ 32. Kg1 Kf8 33. Qh8+ Ng8 34. Bg7+ Ke7 35. Qxg8 Nd6 36. Bf6+ Ke6 37. Qd8 Nc8
38. e4 1-0